***** To join INSNA, visit http://www.insna.org ***** Are you looking at average correlation of the two centralities per group? So, like one department averages .98 between in and out-degree, but another has a lower average? I agree with what I think Valdis is inferring, the kind of email exchanges (in terms of number) and of sender and receiver (are they in a formal reporting relationship) may have very strong effects on the overall pattern. Is there a way to isolate email exchanges that may be more centrally about the substantive themes of a community of practice? in other words, a theoretically-motivated subset of email exchanges may offer more insight into the kinds of voluntary interactions that would delineate a CoP. Jordi On Tue, Oct 6, 2015 at 4:07 PM, Gloria Alvarez <[log in to unmask]> wrote: > ***** To join INSNA, visit http://www.insna.org ***** > Hello, > > As part of my PhD research, I study a community of practice of engineers > and how they share knowledge > > While analyzing some centrality measures per department/country based on > email Exchange patterns I found that while for some specific groups there > is no correlation between indegree and outdegree for some others there is > a linear relationship with R2=0,98, the higher outdegree, the higher > indegree. > Is there any explanation/law for this kind of topology/relationship from > SNA perspective? > > I have some hypothesis from innovation/knowledge perspectives. > > Thanks for your support > > Gloria > > PS. I have already had a look into this article. How Correlated Are > Network Centrality Measures? http://www.ncbi.nlm.nih.gov/ > pmc/articles/PMC2875682/ > > _____________________________________________________________________ > SOCNET is a service of INSNA, the professional association for social > network researchers (http://www.insna.org). To unsubscribe, send an email > message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET > in the body of the message. -- *Jordi Comas* *"There is nothing so practical as a good theory." Kurt Lewin* Social Innovation and Entrepreneurship Blog (under construction): Simple Tools. <https://simpletools.blogs.bucknell.edu/> Netcentric <http://netcentric.blogs.bucknell.edu/>: Resources for Teaching Network Theory and Research Research and Writing Blog: Nets We Weave <http://netsweweave.wordpress.com> *Assistant ProfessorSchool of ManagementBucknell UniversityTaylor 112570 577 3161* _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.insna.org). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.